EEVblog

Stopping the robot uprising by tearing down a Samsung SR8980 robotic cleaning robot found in the dumpster. Forum: https://www.eevblog.com/forum/blog/eevblog-1523-dumpster-samsung-cleaning-robot-teardown/ Youtube:

Part 2 of the BM786 troubleshooting repair, proving it’s the processor at fault. Forum: https://www.eevblog.com/forum/blog/eevblog-1520-troubleshooting-a-faulty-bm786-multimeter/ Youtube:

ChatGPT has changed everything in the space of a month.2023 will be the year of Conversational Search and computer code generation.And how MidJourney and DALL-E have rendered artists obsolete, or at least turned ANYONE into a great and capable artist.This video thumbnail was generated in seconds by Dave who has ZERO artistic skills.Why The Chaser …

What is Common Mode Rejection Ratio (CMRR) and how to measure it on a high voltage differential probe or differential amplifier. Youtube: Extended 30min version: https://www.youtube.com/watch?v=4gi2B3LrCww Differential Probe How It Works: https://www.youtube.com/watch?v=GOlgaEK2Hsk High Voltage Probe reverse engineering: https://www.youtube.com/watch?v=GOk1BYKSsOI&t=2s Forum: https://www.eevblog.com/forum/blog/eevblog-1521-how-to-measure-differential-probe-cmrr/

Looking at a faulty returned BM786 multimeter. Warning: Some components were harmed in the making of this video. Forum: https://www.eevblog.com/forum/blog/eevblog-1520-troubleshooting-a-faulty-bm786-multimeter/ Youtube:

Hacking a dumpster Sonos Play 5 Gen 1 speaker to remove all the evil software locking and turn it into a dumb speaker with just line-in and basic wireless Bluetooth. Integrating a new Fosi Audio ZX-TB21 2+1 amplifier. https://amzn.to/3USD7xQ Youtube: Sonos, the Juicero of wireless speakers: https://www.youtube.com/watch?v=lLyjvXAJcLM Forum: https://www.eevblog.com/forum/blog/eevblog-1519-free-your-sonos-speaker!-(hack)/

Depotting, teardown, and some reverse engineering analysis of the 400W Hoymiles solar microinverter. https://www.hoymiles.com/products/microinverter/ Hoymiles vs Enphase microinverter review: https://www.mcelectrical.com.au/hoymiles-microinverter-review/ Forum: https://www.eevblog.com/forum/blog/eevblog-1518-hoymiles-solar-microinverter-teardown/ Youtube: Odysee:

Installation of a Reclaim Heat Pump hot water system replacing a high efficiency gas tank hot water system. And anlysis of the results. Is a heat pump hot water system more efficient than a gas hot water system? Forum: https://www.eevblog.com/forum/blog/eevblog-1517-heat-pump-hot-water-install-analysis/ Youtube: Odysee: 00:00 – The existing gas tank hot water system 03:11 – Thermal IR …

Mailbag Bonanza! Send stuff to: EEVblog Mailbag PO Box 7949 Norwest NSW 2153 AUSTRALIA Forum: https://www.eevblog.com/forum/blog/eevblog-1516-mailbag-bonanza!/ 00:00 – Mailbag Bonanza! 02:24 – Australian Signals Directorate 75th Aniversary 50 Cent Coin 05:07 – One-Shot Relay! 07:20 – Olight Torch Bonanza! https://www.olightstore.com.au/s/P7TWZN 08:20 – Olight Marauder 2 14,000 lumen torch 18:29 – Olight RN1500 Bike Light 23:02 …

Upgrading the dumpster Tektronix TDS540D oscilloscope with an LCD had a few issues… Ebay listing if you want it: https://www.ebay.com.au/itm/225251897379 Forum: https://www.eevblog.com/forum/blog/eevblog-1515-dumpster-tektronix-tds540d-500mhz-oscilloscope-lcd-replacement/ Youtube: